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Drennen
David B. Drennen, Bellbrook, OH US
| Patent application number | Description | Published |
|---|---|---|
| 20080217124 | Disc brake system - A disc brake system comprises a mounting hub and at least one disc supported by the mounting hub. The mounting hub has a center portion and an outer portion substantially perpendicular to the center portion and defines a central axis extending perpendicular to the center portion. A plurality of grooves are defined within the outer portion and are spaced radially about the central axis. Each of the grooves extends longitudinally relative to the central axis. A bearing is disposed in each of the plurality of grooves and operatively connects the mounting hub and the disc such that the bearing rotates about a bearing axis and moves longitudinally within the groove in response to axial movement of the disc. | 09-11-2008 |
Phillip A. Drennen, Lake Villa, IL US
| Patent application number | Description | Published |
|---|---|---|
| 20110103178 | APPARATUS FOR CONTROLLING SOLIDS BUILD UP IN A MIXER, UNLOADER OR SIMILAR DEVICE - The apparatus of the present invention comprises a plurality of flexible impact elements for controlling the buildup of solids in a mixer, unloader or similar device. The device for use with the impact elements has at least one shaft and a plurality of rotating elements extending radially from the shaft for moving ash or similar particulate solids. The flexible impact elements communicate with the device as the shaft rotates so as to limit or control the buildup of solids on the rotating elements, thus enabling a more efficient throughput of materials by the device. | 05-05-2011 |
William A. Drennen, San Diego, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20100002781 | TRANSMITTER IDENTIFICATION USING A CONTINUOUS WAVE TONE - A methodology for transmitter identification for a single frequency network is provided using a single CW tone. The tone can be transmitted outside the transmitter's active band. It is possible to arrive at significant overlap between the tone coverage area and the coverage area of a neighboring transmitter without disturbing the operations by picking the tone location and power appropriately. | 01-07-2010 |
| 20110002413 | TRANSMITTER COVERAGE IDENTIFICATION USING A CONTINUOUS WAVE TONE - A methodology for transmitter identification for a single frequency network is provided using a single CW tone. The tone can be transmitted outside the transmitter's active band. It is possible to arrive at significant overlap between the tone coverage area and the coverage area of a neighboring transmitter without disturbing the operations by picking the tone location and power appropriately. | 01-06-2011 |